lmrdia {lmomco} | R Documentation

## L-moment Ratio Diagram Components

### Description

This function returns a list of the L-skew and L-kurtosis (tau_3 and tau_4, respectively) ordinates for construction of L-moment Ratio (L-moment diagrams) that are useful in selecting a distribution to model the data.

### Usage

    lmrdia()

### Value

An R `list` is returned.

`limits` | The theoretical limits of tau_3 and tau_4–below tau_4 are theoretically not possible.
`exp` | tau_3 and tau_4 of the Exponential distribution.
`gev` | tau_3 and tau_4 of the Generalized Extreme Value distribution.
`glo` | tau_3 and tau_4 of the Generalized Logistic distribution.
`gpa` | tau_3 and tau_4 of the Generalized Pareto distribution.
`gum` | tau_3 and tau_4 of the Gumbel distribution.
`lognormal` | tau_3 and tau_4 of the Lognormal distribution.
`nor` | tau_3 and tau_4 of the Normal distribution.
`pe3` | tau_3 and tau_4 of the Pearson Type III distribution.
`uniform` | tau_3 and tau_4 of the uniform distribution.

### Author(s)

W.H. Asquith

### References

Hosking, J.R.M., 1990, L-moments—Analysis and estimation of distributions using linear combinations of order statistics: Journal of the Royal Statistical Society, Series B, vol. 52, p. 105–124.

Hosking, J.R.M., 1996, FORTRAN routines for use with the method of L-moments: Version 3, IBM Research Report RC20525, T.J. Watson Research Center, Yorktown Heights, New York.

Hosking, J.R.M. and Wallis, J.R., 1997, Regional frequency analysis—An approach based on L-moments: Cambridge University Press.

### See Also

`plotlmrdia`

### Examples

    lratios <- lmrdia()

[Package lmomco version 0.92 Index]